Internet Engineering Task Force (IETF) V. Fajardo, Ed.
Request for Comments: 6733 Telcordia Technologies
Obsoletes: 3588, 5719 J. Arkko
Category: Standards Track Ericsson Research
ISSN: 2070-1721 J. Loughney
Nokia Research Center
G. Zorn, Ed.
Network Zen
October 2012
Diameter Base Protocol
Abstract
The Diameter base protocol is intended to provide an Authentication,
Authorization, and Accounting (AAA) framework for applications such
as network access or IP mobility in both local and roaming
situations. This document specifies the message format, transport,
error reporting, accounting, and security services used by all
Diameter applications. The Diameter base protocol as defined in this
document obsoletes RFC 3588 and RFC 5719, and it must be supported by
all new Diameter implementations.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6733.
Fajardo, et al. Standards Track [Page 1]RFC 6733 Diameter Base Protocol October 2012Copyright Notice
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Table of Contents
1. Introduction ....................................................7
1.1. Diameter Protocol ..........................................9
1.1.1. Description of the Document Set ....................10
1.1.2. Conventions Used in This Document ..................11
1.1.3. Changes from RFC 3588 ..............................11
1.2. Terminology ...............................................12
1.3. Approach to Extensibility .................................17
1.3.1. Defining New AVP Values ............................18
1.3.2. Creating New AVPs ..................................18
1.3.3. Creating New Commands ..............................18
1.3.4. Creating New Diameter Applications .................19
2. Protocol Overview ..............................................20
2.1. Transport .................................................22
2.1.1. SCTP Guidelines ....................................23
2.2. Securing Diameter Messages ................................24
2.3. Diameter Application Compliance ...........................24
2.4. Application Identifiers ...................................24
2.5. Connections vs. Sessions ..................................25
2.6. Peer Table ................................................26
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